EP4086477B1 - Boîte de vitesses - Google Patents

Boîte de vitesses

Info

Publication number
EP4086477B1
EP4086477B1 EP22170003.2A EP22170003A EP4086477B1 EP 4086477 B1 EP4086477 B1 EP 4086477B1 EP 22170003 A EP22170003 A EP 22170003A EP 4086477 B1 EP4086477 B1 EP 4086477B1
Authority
EP
European Patent Office
Prior art keywords
tooth
bearing
teeth
gear mechanism
retaining ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP22170003.2A
Other languages
German (de)
English (en)
Other versions
EP4086477A1 (fr
Inventor
Heiko Schreiber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wittenstein SE
Original Assignee
Wittenstein SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wittenstein SE filed Critical Wittenstein SE
Publication of EP4086477A1 publication Critical patent/EP4086477A1/fr
Application granted granted Critical
Publication of EP4086477B1 publication Critical patent/EP4086477B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H49/00—Other gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/04—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying rotary motion
    • F16H25/06—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying rotary motion with intermediate members guided along tracks on both rotary members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/08—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion
    • F16H25/14—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion with reciprocation perpendicular to the axis of rotation

Definitions

  • the invention relates to a gearbox and a use of a gearbox.
  • Gearboxes are known in the art that comprise teeth mounted radially displaceable in a tooth carrier.
  • Drive elements with a profile such as cam discs, are used to drive the teeth.
  • the teeth engage with a toothed section, resulting in relative movement between the tooth carrier with the teeth and the toothed section. This relative movement between the toothed section and the teeth is at least one order of magnitude smaller than the movement of the drive element with the profile. High gear ratios can be achieved in this way.
  • gearboxes A critical aspect of these gearboxes is the axial support of the bearing segments. It is known to use thrust washers laterally to the bearing segments; an example of such a gearbox is shown in the DE 10 2015 105 520 A1 shown. However, unwanted wear and tear can occur.
  • the DE 10 2015 105 523 A1 shows bearing segments with centrally arranged ridges, with recesses or lugs in the circumferential direction in front of and behind the ridges.
  • the DE 10 2007 016 189 A1 shows different versions of generic transmissions.
  • the object of the invention is to provide gearboxes which are improved compared to gearboxes known from the prior art, whereby reduced wear or simple assembly is to be achieved.
  • One aspect of the invention relates to a transmission, in particular a coaxial transmission or linear transmission, with a toothed section, a tooth carrier in which a plurality of teeth are received for meshing with the toothed section, wherein the teeth are mounted so as to be radially displaceable relative to the tooth carrier, a drive element with a profile for the radially displaceable drive of the radially displaceable teeth, and bearing segments for mounting the teeth on the profile, wherein each of the bearing segments comprises: a running side oriented in the direction of the profile and a bearing side opposite the running side, a tooth bearing arranged on the bearing side for the pivotal mounting of at least one of the teeth, wherein the tooth bearing comprises a cylindrical section-shaped bead having a first and/or second recess, which is arranged in a direction transverse to a running direction of the bearing segment from a first side edge to a second side edge of the bearing segment, and wherein the bead is arranged in a central region between the first side edge and the
  • the gear bearing is pivotally aligned about an axis transverse to the direction of travel of the bearing segment.
  • the bearing segment in particular, has a direction of travel in the direction of rotation of the transmission.
  • the bead is located at least substantially centrally between the front and rear edges of the bearing segment. Typical bead shapes in these embodiments do not extend the full length from one side edge to the other of the bearing segments. In further embodiments, the bead extends to both The side edges are approached.
  • recesses are provided on both sides of a central area of the bead. In typical embodiments, there may be at least one recess in the central area of the bead, or there may be, for example, two recesses.
  • Another aspect of the invention relates to the use of a gearbox in one of the typical embodiments.
  • a retaining ring is pressed onto the tooth in the region of the tooth base, which at least partially encloses the tooth base of the respective tooth, wherein the retaining ring is attached to the tooth solely or at least partially by the press fit.
  • the tooth is typically designed as a round tooth, at least substantially, at least in a region of the tooth body.
  • the tooth has at least one recess at its base for engagement with the bead of the bearing segment, wherein the bead allows the tooth to pivot relative to the bearing segment, while the tooth, however, holds the bearing segment in its position relative to the tooth in the circumferential direction.
  • the bearing segment can also be referred to as a pivoting segment.
  • cylindrical segment typically refers to an angular segment of the lateral surface of a circular cylinder.
  • the angular segment comprises a minimum of 50° or a maximum of 200°.
  • Recesses are formed in the bearing segment, particularly in the bead, with the retaining ring engaging in these recesses. If axial forces act on the bearing segment, for example from a rolling bearing arrangement, the retaining ring provides axial support for the bearing segment. The retaining ring, in turn, is axially supported by the tooth. The tooth is fixed axially within the tooth carrier and transmits the support forces to the tooth carrier. In some embodiments, the cross-section of the retaining ring can be increased by providing a shoulder at the base of the tooth.
  • directional information refers to the gearbox, i.e., for example, the axial direction is aligned in the direction of the gearbox's axis of rotation.
  • a tooth typically comprises a head, which is designed to engage with the teeth; a posterior segment, which extends between the head and the base; and a basal segment, also known as the root, which provides support on the bearing surface of the cusp segment.
  • the head and base are located at opposite ends of the tooth. The base can typically rest against the bearing surface of the cusp segment.
  • Embodiments of the invention relate in particular to coaxial transmissions.
  • transmissions of the invention comprise an internal cam disk with a profile as the drive element and a ring gear with internal teeth, or an external drive element with internal profiling and an internal gear or rack, which, in the case of the external drive element, provides the teeth.
  • Configurations of embodiments relate to linear transmissions for converting a rotation into a linear motion.
  • the gearing is typically a circumferential gear.
  • the teeth or tooth tips engage with the gear teeth, which are typically mounted to allow linear radial displacement relative to the tooth carrier.
  • Linear radial usually means that there is a radial guide that only permits movement of the tooth in the radial direction.
  • the guide allows the tooth segment to be displaced linearly in exactly one direction. This can be achieved, for example, by ensuring that the tooth has a constant cross-section in the direction of displacement over a certain length, with the tooth carrier also having an opening for the tooth segment with a constant cross-section.
  • the teeth are usually mounted in the tooth carrier to allow displacement in exactly one direction, typically along the longitudinal axis of the tooth.
  • the rotational freedom of the teeth relative to the tooth carrier about the longitudinal axis of the gear is restricted. This can be achieved, for example, by a linear radial guide for the teeth within the tooth carrier. In this way, the teeth rotate with the tooth carrier around the longitudinal axis of the gearbox, but not relative to the tooth carrier.
  • At least some of the teeth are designed to be torsionally rigid.
  • the term "torsionally rigid” is typically to be understood in a technical sense, meaning that bending of the teeth due to the stiffness of the tooth material is so small that it is at least essentially insignificant for the kinematics of the gear.
  • Torsionally rigid teeth include, in particular, teeth made of a metal alloy, especially steel or a titanium alloy, a nickel alloy, or other alloys.
  • torsionally rigid teeth made of plastic can also be provided, especially in gears in which at least one of the following parts is also made of plastic: the toothing on a ring gear or a gear, the tooth carrier, and the drive element.
  • the tooth carrier and the teeth are made of a metal alloy, or additionally, the toothing or, furthermore, the drive element is also made of a metal alloy.
  • Such gears offer the advantage of being extremely torsionally rigid and highly load-bearing.
  • Gears made of plastic offer the advantage of being lightweight.
  • the term "flexurally rigid” refers specifically to flexural rigidity about a transverse axis of the tooth segment. This means, in particular, that when the tooth segment is viewed as a beam extending from the tooth root to the tooth tip, a flexural rigidity exists that essentially eliminates bending deformations between the tooth tip and tooth root. This flexural rigidity results in extremely high load-bearing capacity and torsional stiffness of the gearbox.
  • the bearing segments preferably have facing edges with raised and recessed features, for example, a wave-like or serrated shape. This offers the advantage that needle rollers arranged below the bearing segments are reliably held in the space between the bearing segments and the drive element, even with a larger distance between the bearing segments.
  • the bearing segments can be mounted directly on the cam profile.
  • Typical embodiments of the invention include a drive element with a profile.
  • the profile preferably has a non-circular or non-ellipsoidal arc or curve shape.
  • Eccentrics are also classified as circular or ellipsoidal shapes, since in eccentrics only the axis of rotation does not correspond to the central axis of the circular shape, although a circular shape is nevertheless present.
  • the tooth carrier or the teeth are circular. This offers the advantage of a simple geometry for the tooth carrier and the teeth.
  • the power transmission on the slow-speed side of the transmission occurs between the teeth and the tooth carrier. This offers the advantage that the path for power transmission is extremely short, so that extremely high stiffness can be achieved.
  • Embodiments that meet these conditions include, but are not limited to: transmissions with an internal cam disc as the drive and an external ring gear with teeth, wherein the tooth carrier is arranged between the ring gear and the cam disc; an external cam disc with internal profiling on a ring gear for driving the radially movable teeth inwards against teeth arranged on a gear or rack.
  • the bearing segments are movable relative to each other in the circumferential direction.
  • the bearing segments can, for example, have a distance between them determined by the radial position of the teeth.
  • the ridges are designed such that the axis of rotation of the tooth on the ridge coincides at least substantially with the running surface.
  • “Substantially” means, for example, that the axis of rotation lies a maximum of 50%, 30%, 20%, or 10% of the diameter of a rolling element above or below the running surface. In other embodiments, the axis of rotation lies a maximum of 20%, 10%, or 5% of the maximum radial extent of the bearing segment from the running surface.
  • the ridges of these embodiments have lateral flanks facing the recesses, which are at least partially straight or at least partially circular in the circumferential direction.
  • the flank can also be understood as the interface between the ridge and the recess or as the lateral boundary of the ridge.
  • the shape of the flank is typically adapted to the shape of a retaining ring.
  • a retaining ring is provided for each tooth, which at least partially encloses the tooth base of the respective tooth.
  • a retaining ring is provided for at least two teeth, which at least partially encloses the tooth base of the respective teeth. In this way, the bearing segment can be supported axially via the tooth or teeth and the retaining ring.
  • the retaining ring is made of steel, but it can also be made of comparatively lighter plastic or as a bent sheet metal part. A retaining ring made of steel has a high load-bearing capacity and is cost-effective to manufacture.
  • a shoulder is provided on the outer circumference of the tooth or teeth at the base to accommodate the retaining ring. This shoulder reduces the space required. It typically forms an inward step, resulting in a reduced diameter at the base of the tooth.
  • Typical teeth of these embodiments have a circular cross-section. Thanks to the retaining ring in conjunction with the bead and the internal teeth, these embodiments can largely dispense with complex additional guide or support elements.
  • the retaining ring is ring-shaped.
  • the ring shape can be flattened or circular.
  • Other retaining rings in various designs are angular, for example, square, or have several ring-shaped sections.
  • the outer circumference of the retaining ring is partially straight.
  • a retaining ring shaped like a circular ring with flattened sections on the inner or outer circumference may be used. Flattened sections on the outer circumference prevent collisions between adjacent retaining rings.
  • a first stop is formed on the bearing side of the bearing segment between the first recess and the first side edge, or a second stop is formed between the second recess and the second side edge. Additional recesses may be provided. In typical embodiments, the length of a bead between two recesses is at most the tooth width or tooth diameter. In embodiments with two teeth arranged parallel on a bearing segment, at least one recess or at least one stop is optionally provided between the areas where the teeth rest on the respective bead. Typically, at least two recesses with at least one stop between the recesses are provided, particularly in an area between the teeth. Stops in embodiments can be formed, in particular, by further bead sections, for example, between two teeth or in an area between a bead supporting a tooth and the respective side edge.
  • the retaining ring can rest against the stops of the bearing segment, particularly via its outer circumference.
  • a retaining ring for two teeth with two recesses for the teeth to engage can be provided.
  • the retaining ring encompasses a bead of the bearing segment, allowing it to be supported axially against the tooth segments via the retaining ring.
  • a clearance can be provided between the teeth and the retaining ring to compensate for tolerances, for example, in the tooth spacing.
  • the retaining ring secures the respective bearing segment in its position transverse to the direction of rotation by engaging in at least one recess or by engaging with the flanks of the bead.
  • Typical embodiments include two recesses per tooth.
  • the axial length of the bead of the bearing segment corresponds to a maximum of one inner diameter of the retaining ring.
  • the retaining ring encompasses the bead or a section of the bead between two recesses.
  • the recesses between the teeth and the respective side edges extend from the area of the bead that supports the tooth to the respective side edges; for example, the first recess extends to the first side edge and the second recess to the second side edge.
  • exactly one tooth can be mounted on a bearing segment, or exactly two teeth can be mounted on a bearing segment.
  • the teeth are typically arranged side by side, and the bead has at least one, typically exactly two, breaks.
  • FIG. 1 An exemplary embodiment is shown in a schematic sectional view.
  • Figure 1 schematically shows a cross-sectional view of a gear 1, which has a ring gear 3 with an internal, rotating toothed section 5. Teeth 7 engage with the toothed section 5. For clarity, not every tooth 7 is shown.
  • Fig. 1 also designated with the reference numeral 7.
  • the teeth 7 are radially displaceable within a gear carrier 11.
  • the gear carrier 11 has radially oriented channel-like round or slot-like openings, which ensure radial guidance of the teeth 7 within the gear carrier 11. Due to the radial guidance in the openings, the teeth 7 can only move radially along their longitudinal axis; in particular, rotation about a longitudinal axis of the gear 1 relative to the gear carrier 11 is prevented.
  • the longitudinal axis of the teeth typically refers to the axis running from the tooth root to the tooth tip, while the longitudinal axis of the transmission points in the direction of the transmission's axis of rotation. This could, for example, be the axis of rotation of the tooth carrier used as an output or the axis of rotation of a cam disc.
  • the teeth 7 are driven by a cam disk 20, which is designed as a hollow cam disk 20.
  • the cam disk 20 has a profile 22 to drive the teeth 7 in a radial direction.
  • the profile 22 has a contour with two projections around its circumference, so that there are opposing There are teeth 7, which in the representation have penetrated furthest into the gaps of the tooth arrangement 5.
  • Teeth 7 are in the Fig. 1
  • the gear unit 1 shown is arranged with a rolling bearing on the profile of the drive element.
  • the rolling bearing comprises rolling elements 23, which in this embodiment are designed as needle rollers.
  • the cam disc is arranged on the inside and the teeth on the outside.
  • the output is taken from the ring gear with the teeth or from the tooth carrier, with the other element being defined.
  • the drive element is arranged on the outside, i.e., outside the tooth carrier, and the teeth are arranged on the inside. Again, it is possible to take the output from the inner teeth or from the tooth carrier.
  • the tooth carrier, with its openings, can also be described as a tooth cage in which teeth are radially and linearly guided and slidably mounted.
  • the gear 1 includes a segmented bearing for the teeth 7.
  • the segmented bearing comprises bearing segments 24, each of which forms a substantially cylindrical segment-shaped ridge 26 on the bearing side facing the tooth 7, on which the base of two teeth 7 (see Fig. 3 ) or, in typical embodiments, one, three, or four teeth can be arranged side by side in the axial direction of the gear 1.
  • the ridges 26 form ankle joints for the teeth 7, allowing the teeth 7 to tilt relative to the bearing segments 24 to ensure free-running guidance.
  • the bearing segments 24 are displaceable relative to each other in the direction of rotation, so that the distances between the bearing segments 24 can be changed. In this way, the degree of freedom in the direction of rotation of the bearing segments 24 is not restricted. This enables a
  • the cam disk 20 provides largely free-flowing guidance and largely free-flowing radial drive for the bearing segments 24.
  • the rolling elements 23 are designed as needle rollers. In other embodiments, balls or other rolling bearings are provided for supporting the bearing segments. In other embodiments, a sliding bearing arrangement between the cam disk 22 and the bearing segments 24 may be provided.
  • a bearing segment 24 of the gearbox 1 of the Fig. 1 The bearing segment 24 comprises a bead 26 on the side of the bearing segment 24 facing a tooth 7 in the gear 1.
  • the circular surface section of the bead 26 is circular.
  • the center of the circle coincides with a running surface 30 of the bearing segment 24.
  • the running side 30 is the side of the bearing segment 24 facing away from the tooth, i.e., the side facing the rolling element 23 or the cam disc 20.
  • the running side 30 corresponds to the surface on which the rolling elements 23 roll.
  • the bearing segment 24 comprises a front edge 34 and a rear edge 36.
  • the terms “front” and “rear” do not refer to movement; rather, they denote two sides of the bearing segment 24 that are opposite each other in the direction of rotation.
  • Typical gearboxes can be operated in two directions, so that during operation, the front edge of the segment can be at the rear in the direction of movement, and conversely, the rear edge of the segment can be at the front.
  • a circumferential shoulder 42 is provided around a foot or at the base of tooth 7, which is encompassed by a retaining ring 40.
  • the retaining rings are used in connection with the Fig. 3 Described in more detail.
  • FIG. 3 is another sectional view of the bearing segment 24 with the teeth 7 of the embodiment of the Fig. 2 shown, with additional details of gearbox 1 also shown.
  • Fig. 3 is in connection with the Figures 1 and 2 described, since the same parts are depicted in each case, although also in the Fig. 3 Details are shown which are in the Fig. 1 and in the Fig. 2 are not shown.
  • the retaining rings 40 prevent the teeth 7 from shifting axially along the gear, i.e., in one direction along the bead 26.
  • the bead 26 runs in one direction transverse to a running direction of the bearing segment 24 from a first side edge 44 to a second side edge 46 of the bearing segment 24 and at least substantially midway between the front edge and rear edge of the bearing segment.
  • the bead 26 is located in a central region between the first side edge 44 and the second side edge 46. On one side of this central region, the bead has a first recess 45, and on the other side of this central region, the bead 26 has a second recess 47. Furthermore, the bead 26 has two additional recesses 48, which are located approximately midway between the first recess 45 and the second recess 47. These additional recesses 48 can therefore also be described as breaks in the bead.
  • All recesses 45, 47 and 48 are located approximately below the circumference of a shoulder 42 of the teeth 7. In this way, the flanks on the recesses 45, 47 and 48 of the bead 26 create abutments for the retaining rings 40 in the axial direction.
  • the bearing segments can be held axially by the teeth guided in the tooth carrier. This may eliminate the need for lateral thrust rings or similar components for the bearing segments.
  • flanks arranged towards the recesses 45, 47 and 48 run at least partially circularly, so that they are adapted to the outer circumference of the circular retaining ring 40. These can also be considered as stops, especially for the retaining ring.
  • a retaining ring is provided for each tooth 7, which at least partially encloses the base of the respective tooth 7 on the circular shoulder 42.
  • the Fig. 4 and the Fig. 5 show the storage segment of Fig. 2 and the Fig. 3 in schematic perspective views.
  • FIG. 6 Figure 1 shows another embodiment of a bearing segment 24 with exactly one tooth 7 mounted on the bearing segment 24, which is held by an alternative embodiment of a retaining ring 140.
  • the retaining ring 140 is in the Fig. 7 shown again in a top view.
  • the retaining ring 140 has inwardly directed lugs 141 which support the bead 26 and its lateral flanks.
  • the section of the sectional view of the Fig. 6 runs through the noses 141.
  • the retaining ring 140 engages in different areas than in the cut in the Fig. 6
  • the area shown is around the base of tooth 7. It should be noted that tooth 7 has a recess in the base for intervention with the ridge 26.
  • the recesses 45 and 47 can extend to the side edges 44, 46 of the bearing segment 24.
  • additional stops can be arranged in the area between the bead 26 and the side edges 44, 46.
  • the gearbox 1 of the Fig. 1 can also be used with the bearing segment 24 of the Figure 6 and 7 operated.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)
  • Rolling Contact Bearings (AREA)
  • Retarders (AREA)
  • Mounting Of Bearings Or Others (AREA)

Claims (11)

  1. Engrenage (1), en particulier engrenage coaxial ou engrenage linéaire, comprenant
    - une denture (5),
    - un support de dents (11) dans lequel sont logées une pluralité de dents (7) destinées à s'engrener avec la denture, les dents (7) étant montées de manière à pouvoir se déplacer radialement par rapport au support de dents (11),
    - un élément d'entraînement muni d'un profilage (22) pour l'entraînement radial des dents (7) montées de manière à pouvoir se déplacer radialement, et
    - des segments de palier (24) pour le montage des dents sur le profilage, chacun des segments de palier comprenant :
    - un côté de roulement orienté en direction du profilage et un côté de montage opposé au côté de roulement,
    - un palier de dent, disposé sur le côté de montage, pour le montage articulé de l'une au moins des dents,
    - le palier de dent comprenant un bourrelet en forme de section cylindrique qui présente un premier et/ou un deuxième évidement et qui est disposé dans une direction transversale à une direction de roulement du segment de palier, en allant d'un premier bord latéral à un deuxième bord latéral du segment de palier, et
    - le bourrelet étant disposé dans une zone centrale entre le premier bord latéral et le deuxième bord latéral et présentant le premier évidement sur un premier côté de la zone centrale et/ou le deuxième évidement sur un deuxième côté de la zone centrale,
    et
    - par dent (7) est prévue une bague de retenue (40) qui entoure au moins partiellement une base de dent de la dent respective (7) et qui, par engagement dans ledit au moins un évidement, bloque le segment de palier respectif (24) dans sa position transversalement à la direction circonférentielle.
  2. Engrenage selon la revendication 1,
    dans lequel le bourrelet présente des flancs latéraux respectifs en direction des évidements, qui s'étendent au moins localement en ligne droite dans la direction circonférentielle et/ou qui s'étendent au moins localement en forme circulaire.
  3. Engrenage selon la revendication 1 ou 2,
    dans lequel un épaulement (42) destiné à recevoir la bague de retenue (40) est prévu sur un pourtour extérieur de la dent (7) au niveau de la base de la dent.
  4. Engrenage selon l'une des revendications précédentes,
    dans lequel les dents présentent une section transversale circulaire.
  5. Engrenage selon l'une des revendications précédentes,
    dans lequel la bague de retenue est de forme annulaire.
  6. Engrenage selon l'une des revendications précédentes,
    dans lequel un pourtour extérieur de la bague de retenue est localement rectiligne.
  7. Engrenage selon l'une des revendications précédentes,
    dans lequel une première butée est formée sur le côté de montage du segment de palier entre le premier évidement et le premier bord latéral et/ou une deuxième butée est formée entre le deuxième évidement et le deuxième bord latéral.
  8. Engrenage selon l'une des revendications 1 à 6,
    dans lequel la bague de retenue bloque le segment de palier dans sa position transversalement à la direction circonférentielle par l'intermédiaire du bourrelet et/ou des butées.
  9. Engrenage selon l'une des revendications précédentes,
    dans lequel le premier évidement s'étend jusqu'au premier bord latéral et le deuxième évidement s'étend jusqu'au deuxième bord latéral.
  10. Engrenage selon l'une des revendications précédentes,
    dans lequel exactement une dent est montée sur un segment de palier ou exactement deux dents sont montées sur un segment de palier.
  11. Utilisation d'un engrenage selon l'une des revendications précédentes.
EP22170003.2A 2021-05-03 2022-04-26 Boîte de vitesses Active EP4086477B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021111364.4A DE102021111364A1 (de) 2021-05-03 2021-05-03 Getriebe

Publications (2)

Publication Number Publication Date
EP4086477A1 EP4086477A1 (fr) 2022-11-09
EP4086477B1 true EP4086477B1 (fr) 2025-10-29

Family

ID=81386913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22170003.2A Active EP4086477B1 (fr) 2021-05-03 2022-04-26 Boîte de vitesses

Country Status (6)

Country Link
US (1) US12000460B2 (fr)
EP (1) EP4086477B1 (fr)
JP (1) JP2022172448A (fr)
CN (1) CN115289196A (fr)
DE (1) DE102021111364A1 (fr)
ES (1) ES3059317T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024193778A1 (fr) * 2023-03-23 2024-09-26 Vestas Wind Systems A/S Transmission destinée à une éolienne
EP4571144A1 (fr) * 2023-12-14 2025-06-18 Vestas Wind Systems A/S Transmission pour une éolienne

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006042786B4 (de) * 2006-09-08 2008-09-11 Wittenstein Ag Hohlwellengetriebe
DE102007016189B4 (de) 2007-04-02 2011-12-08 Wittenstein Ag Getriebe
DE102012102802B4 (de) * 2012-03-30 2016-07-07 Wittenstein Ag Getriebe
DE102015105520B4 (de) 2015-04-10 2024-07-18 Wittenstein Se Getriebe
DE102015105524B4 (de) * 2015-04-10 2024-01-18 Wittenstein Se Getriebe
DE102015105523B4 (de) 2015-04-10 2024-05-02 Wittenstein Se Getriebe
DE102015105526A1 (de) * 2015-04-10 2016-10-13 Wittenstein Ag Antrieb und Verfahren zum Betreiben eines Antriebs
DE102017101565A1 (de) * 2017-01-26 2018-07-26 Wittenstein Se Koaxialgetriebe mit positiver übersetzung

Also Published As

Publication number Publication date
EP4086477A1 (fr) 2022-11-09
JP2022172448A (ja) 2022-11-16
US12000460B2 (en) 2024-06-04
US20220349457A1 (en) 2022-11-03
ES3059317T3 (en) 2026-03-19
CN115289196A (zh) 2022-11-04
DE102021111364A1 (de) 2022-11-03

Similar Documents

Publication Publication Date Title
EP3354934B1 (fr) Engrenage coaxiale à traduction positive
DE3738521C1 (de) Planetengetriebe
DE60204713T2 (de) Ein verbessertes stufenloses getriebe
DE102015105524B4 (de) Getriebe
DE3249692C2 (fr)
DE102012102802B4 (de) Getriebe
EP2398671B1 (fr) Ferrure pour siège de véhicule
DE3814061C2 (fr)
DE102015105523B4 (de) Getriebe
EP2541098B1 (fr) Engrenage et utilisation d'un tel engrenage
EP3751174A1 (fr) Mécanisme de réglage
DE19708310A1 (de) Untersetzungsgetriebe
EP4086477B1 (fr) Boîte de vitesses
EP3168496B1 (fr) Engrenage et methode pour produire un tel engrenage
EP3779239A1 (fr) Engrenage à grande démultiplication
EP2255104B1 (fr) Boite de vitesses
DE102015105525B4 (de) Schwenksegment
EP3982005B1 (fr) Engrenage coaxial
EP3728897B1 (fr) Transmission par engrenages
EP0719964B1 (fr) Transmission planétaire à engrenages droits
EP3168497B1 (fr) Engrenage et utilisation d'une engrenage
EP3828444B1 (fr) Boîte de vitesses
DE102004007045B3 (de) Beschlag für einen Fahrzeugsitz
DE10316434A1 (de) Betätigungseinheit für ein Schaltgetriebe sowie Schaltwelle
EP3816478A1 (fr) Engrenage coaxial à dents mobiles

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20221124

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20231030

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20250526

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: F10

Free format text: ST27 STATUS EVENT CODE: U-0-0-F10-F00 (AS PROVIDED BY THE NATIONAL OFFICE)

Effective date: 20251029

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: R17

Free format text: ST27 STATUS EVENT CODE: U-0-0-R10-R17 (AS PROVIDED BY THE NATIONAL OFFICE)

Effective date: 20251111

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502022005897

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20251029

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 3059317

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20260319

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20260129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251029

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20260129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20260228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20260302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251029